 |
| Separating substances from liquids a hundred years ago was still a novel chore and not even as easy as a car insurance comparison is today. |
Air and Gases in Water.-A considerable amount of air generally exists in water, and is taken up by the gills of fishes, assisting them to accomplish the proper aeration, or rather oxygenation, of their blood. The air usually mingled with water may be expelled by boiling, but is absorbed again if the boiled water is agitated with access of the atmosphere.
Now, that particular segment doesn't make a great deal of sense in the grand sense of things, but it would appear that the author is trying to talk about the purification or the impurities that can be found or removed from water.
Additional Articles from the Book of Medicine:
- How to Perfect Your Smile with Veneers?
One hundred years ago the smile you were born with or grew soon there after, was pretty much as good as it got. In fact, you could probably count on things getting worse as you got older and at best you could expect false teeth if you could afford them in cash.These days we have many new options to make your smile as good as that of a movie star’s. In addition to straightening your teeth with braces, you can have your smile brightened up with veneers.
A veneer is simply something that goes on the outside face of your teeth. It can be composite veneers, made of a composite of materials that is applied to your tooth. It can also be porcelain and can then be bonded directly to the exterior of your teeth.
You do not have to have your teeth pulled to end up with a perfect looking smile. You can also maintain your teeth just like you would today, brushing and flossing as you still have the same teeth, they just get a makeover!
You do not have to shell out a fortune going to an orthodontist, you can simply go to a dentist to have the procedure done. Its easier than having a cap or filling put on your teeth and painless as well.
- The Spinal Column
The Spinal Column. — The spinal column, the lumbar portion of which is here seeing, consists of twenty-four bones, the which are placed pads of cartilage. Such is the elasticity of these cushions of cartilage, that, though they become condensed to the day, making a shorter in the evening then in the morning, they resume their normal thickness while you’re lying in bed at night. The perfection in the architecture of the spine surpasses belief; its various uses seem a bundle of contradictions.
This section starts to sound more like the book we are familiar with. There are several excessive uses of the coma and once again we start to encounter the authors love of the human body in a way that is less than scientific. I suppose a hundred years ago there may have been a little bit more passion for science than there is today, or maybe my own perception in this regards as biased. I seem to recall an anthropology professor back in college that was possibly as passionate about his topic is the author is about this topic.
- Difficulty of Obviating Lead Poisoning
Difficulty of Obviating Lead Poisoning. — attempts have been made to obviate the danger of water contamination from lead pipes in various ways, but not as yet with complete success. In some instances the pipes have been lined with other metals, such as tin or zinc; but, at least in some instances, a galvanic action has thus been set up, which corroded the conduits with great rapidity, and probably lead, therefore, still more dangerous pollution of the water supply. Coating the pipes on the inside with coal tar, bituminous varnish, solution of gutta-percha and the India rubber, have also been experimented with, as yet with but partial success.
Well those prescriptions sound about as useful as most prescriptions for acne treatments today. Again, I would remind everyone that the quote above is from a 100 year old medical book and the preventative steps offered really only offer historical perspective.
